<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<script type="text/javascript">
		// num += 90;// num = num+90
		
		alert(!90>80 || 100>90 || 70<60);

		num1 = 90;
		num2 = 80;

		num3 = num1<num2 ? num1 : num2;

	</script>
</head>
<body>
	
</body>
</html>